WW1, Allied Troops occupy Istanbul
The allied forces continued to occupy the Ottoman territories until the Treaty of Lausanne was signed on July 24, 1923. The Treaty of Lausanne led to the end of the occupation of Istanbul. The last troops of the Allies left Istanbul on October 04, 1923.
In World War I, even though the Ottoman forces were supplied with modern German military equipment and personnel, the lack of food, water, and clothing that they experienced proved almost as fatal as the enemy’s bullets. Moreover, the lack of sufficient communication and transportation facilities hampered the Ottoman war effort to a considerable extent.